Band-saw mill



(No Model.) e sheets-sheet, 1. W. F. PARISH.

BAND SAW MILL. No. 888,069. Patented Aug. 21, 1888.

iii

q/vbbvmcm 8mm 2 I 7Vz7h'am 1713011976.

2.6 v 38 13 3H0 z 1 1 e LAO N. PETERS. PhoOo-Liihogrnphun Washington,[1Q

(No Model.) 6. Sheets-Sheet 2.

W. F. PARISH.

BAND SAW MILL. N0. 388,069. Patented Aug. 21, 1888.

flap? f I I I I I I I I WW QW'H/wwm awn/to z wan/JV 6 Sheets-Sheet 3.

(No Model.)

W. F. PARISH.

BAND SAW MILL.

Patented Aug. 21, 1888.

Fig. :5.

A\\ \mkxmxx N. FEIERS Pnvwuma n tm. Washingmn. D. C.

(No Model.) 6 Sheets-Sheet 4.

W. F. PARISH.

BAND SAW MILL.

No. 388,069. Patented Aug. 21, 1888.

Fly g 7 7 A 3 /a 2& l5 075$ //y D 3/ Jj 77 VMVAVAVW AV AWWA AV WAAVWWWWA WW @Wm 00 awuwwl o z E I 77 17212727? Ifawzkk.

N PETERS. "nib-lithographs Wuh'mgwn. we

(No Model.) 6 SheetsSheet 5.

W. F. PARISH.

BAND SAW MILL.

No. 388,069. Patented Aug. 21, 1888.

N. FEYERS. mwumo mr. Washlngum o c.

6 Sheets-Sheet 6.

(No Model.)

W. F. PARISH.

BAND SAW MILL.

No. 388,069. Patented Aug. 21, 1888.

In zrenTo 7,

49 IL I UNTTETT STATES PATENT @rrrcn.

\VILLIAM F. PARISH, OF MINNEAPOLIS, MINNESOTA.

BAND-SAW MILL.

SPECIFICATION forming part of Letters Patent No. 388,069, dated August21, 1888.

Application filed March 2, 1888.

T0 aZZ whom it may concern.-

Be it known that I, WILLIAM F. PARISH, of Minneapolis, in the county ofHennepin and State of Minnesota, have invented certain Improvements inBand-Saw Mills, of which the following is a specification.

The object of my invention is to provide a bandmill with an improvedconstruction of supporting-frame, with improved means for supporting theupper wheel, with an improved construction of upper guide and means foradjusting the same, with improved means for supporting and adjusting thelower wheel, and with improved means for permitting the saw to be placedupon and removed from the lower wheel.

In the common type of band-mills the upper wheel is mounted at or nearthe end of its shaft, and the shaft is supported in bearings upon acolumn or pillar, so that the wheel overhangs the standard or columnupon which the shalt is mounted. Sometimes these mills are provided witha light bearing outside of the overhanging wheel. The lower wheel islikewise usually mounted upon the end of the shaft and outside both ofits bearings. The main objection to this construction is that the greatstrain brought upon the saw tends to throw downward the. free orunsupported end of the upper shaft, or the end that carries the wheel,so that the saw does not run evenly. The main difference between mybandmill and the band-mills of the prevailing type consists in the factthat in my machine both the upper and the lower wheels are secured totheir shafts at points substantially midway between their bearings. Bothwheels are therefore firmly supported, and there is no possibility ofthe shafts being tipped in either direction by the strain brought uponthem by the saw.

There are other material and essential points of difference between myconstruction and those heretofore used, all of which will be fullyunderstood from the following detailed de scription, taken in connectionwith the accompanying drawings, in which- Figure 1 is a side elevationof my improved machine. Fig. 2 is an end elevation of the same. Fig. 3is a central vertical section.

Fig. 4. is a vertical section at right angles to the plane of Fig. 3.section taken on line :0 x of Fig. 2.

Fig. 5 is a. horizontal Fig. 6 is Serial No. 265,948. (No model.)

a horizontal section on line y 1 of Fig. 2, the upper guide beingomitted. Fig. 7 is a horizontal section on line .2 z of Fig. 2. Fig. 8is a detail. 1

In the drawings, 2 represents the main frame or standard of the machine,which is preferably formed of a hollow casting having a broad baseadapted to be supported upon a suitable foundation, a single uprightcolumn rising therefrom to a point a short distance below the lower edgeof the upper wheel, where it is dividedinto twostandards,38,havinganopening between them, in which the wheel is received, and each providedwith a suitable movable bearing or journal-boX for one end ofthe shaftof the upper wheel. The upper wheel, 5, is mounted upon its shaft 7between the two journal-boxes 9. These boxes therefore receivesubstantially equal proportions of the weight ofthe wheel and shaft andof the strain exerted by the saw. The journal-boxes 9 are each providedwith a depending bar, which is received in a vertical bearing in theupper end of the single standard 8, and is adapted to move verticallytherein. The lower ends of these bars are connected by links 11 withthepivoted levers 13, that are arranged within the upper parts of thestandards 3. These lovers have their opposite ends connected by rods 15with short arms 17 on a shaft, 19. The shaft 19 has an arm, 21, securedto it, and upon this arm is suspended a boss,23,adapted to receiveweights for counterbalancing the upper wheel. A sufficient weight may beapplied in this manner to hold the upper wheel with a yielding tensionagainst the saw and cause it to take up the slack of the saw in a mannerwell understood in the art. In order to prevent the weight from droppingtoo far and moving the wheel up too far should the saw break, or whenthere is no saw on the wheels, I extend the ends of the lovers 13through slots in the wall of the standards and the ends of these slotsform stops which limit the movement of the levers 13, and consequentlythe movement of the upper wheel.

The support for the upper guide consists of a substantially Ushapedframe or casting,25, which is supported upon ways 27 upon the mainstandard of the machine. These ways are parallel to each othcr,and theguide-frame is adapted to move vertically thereon to bring the upperguide into its proper position over the log that is on the carriage.This construction of the guide-frame 25 permits the guide to be movedvery close to the point where the saw passes off from the upper wheel.The lower portion of the upper wheel projects into the open spacebetween the two legs of the guide-supporting frame. A sheave, 29, ismounted within the hollow standard at a point near the upper end of theways 27, and

a similar sheave, 31, is mounted at a point near the lower ends of theways. A shaft,33, is mounted in hearings in the main standard andextends through it from one side to the other,and is provided with thespools 35, which are arranged in line with the sheaves 29 and 31. Acable, 37, is secured at one end to the guide-frame 25, passes over thesheave 29, several times around the spool 35, and under the sheave 31,and has its other end attached to the guide-frame 25. The shaft 33 isprovided with the hand-wheel 39, arranged inside of the standard, and bymeans of this handwheel the shaft may be turned upon its axis, andthereby the guide-frame and the guide supported by it be raised orlowered upon the ways 27. In order to counterbalance the weight of thisguide-frame the shaft 33 is provided with a spool, 41, around which acord, 43, is wound in the opposite direction from the cord 37. Aweight,45, is supported upon this cord, and by this means the weight of theguide-frameand guide will becounterbalanoed,

and the guide may be easily operated by turning the hand-wheel 39. Theouter end of the guide-frame 25 is inclined, as shown in Fig. 1, and isprovided with a groove in which is mounted a block, 51, that is adaptedto be moved up and down in this groove.

The block 51 is provided with a curved face havinga transverse groove,in which the guide proper, 53, is mounted. By moving the guide 53forward and back in the grooved slot in the block 51 the guide may begiven a rotary adjustment as it is moved forward and back, and

by adjusting the block 51 up and down in the groove in the inclined faceof the frame 25 the guide will be moved toward or from the mainstandard, and thereby the saw will be moved in one direction or theother, as desired. The lower guide is preferably similar in constructionto the upper guide; but its block 51 is mounted on a stationary arm, 55,that is secured to the base of the standard, as shown in Fig. 1.

The base of the main standard rests upon a foundation that is usuallyarranged upon a level with the floor-line of the mill. Beneath I thisthe lower shaft is mounted, preferably,

upon supports 57, arranged at the front and back of the main standard,already described. The supports 57 are preferably formed as opencastings or frames having a series of independent legs, 59. In orderthat the endless saw may be readily applied to or removed from the lowerwheel, I prefer to provide one of the supports 57 with a portion whichmay be taken out or moved, so as toleave a gap or opening through whichthe saw may be carried into the space between the supports and beneaththe shaft of the lower wheel or be taken out therefrom. This portion ofthe support, as here shown, consists of a section,61, in each of thelegs 59, that'is adapted to be held therein by means of a bolt, 63. Withthis construction each of the sections may be removed in turn, the sawcarried through the opening formed thereby, and the section replacedbefore another section is removed. The support will in this way alwaysbe sufficient for the weight which comes upon it, as any one section maybe removed without materially weakening it. I do not wish to confinemyself, however, to this arrangement of the removable sections orportions of the support, as the same may be obviously varied withoutdeparting from my invention, or to confine myself to the form of supportshown, as anysuitable support may be used. It is desirable, however,that the movable portion of the support shall be so arranged that only apart of it need be moved at atime. Each support 57 is also preferablyprovided with a substantially rectangular opening, in which thesupporting and adjusting devices for the ends of the shaft are arranged.

A cast-metal frame, 65, is arranged to move upon vertical ways 67,formed upon the opposite sides of this rectangular opening. A threadedrod, 69, is secured to the frame and projects downward therefrom. Arevolving nut, 71, engages this threaded rod, and is supported in theopening in the frame 57, which forms a bearing therefor, and is held inposition by means of a collar formed on it at its upper end and restingupon the frame 57, and a collar, 73, secured upon its lower end, asshown in Fig. 1. The nut is thus permitted to revolve in hearings in theframe 57, but vertical movement thereof is prevented. A gear-wheel, 75,is secured to the revolving nut 71, and is engaged by a pinion, 77, upona vertical shaft, 79, that extends above the floorline of the mill, andis provided at its upper end with a beveled gear, 81. The constructionand arrangement of these devices at the two ends of the shaft arepreferably the same, as shown in the drawings.

Ashaft,83, is mounted in bearingsin the main standard of the machine,andis provided at one end with a bevel-gear, 85, engaging the bevelgear 81upon one of the vertical shafts 79. A sleeve, 87, arranged at the otherend of the shaft, is provided with the bevel-gear 89 that engages thebevel-gear 81 upon the other vertical shaft, 79. The sleeve 87 ismounted loosely upon the shaft 83, but is constructed to be engaged by asleeve, 91, that is splined to the shaft and turns therewith.

The sleeve. 91 is arranged to slide on the shaft 83, and is providedwith a suitable handle, 93. When the sleeve 91 engages the ICO will beoperated simultaneously, and the two frames 65, which support the endsof the lower shaft,will be simultaneously raised or lowered.

\Vhen the sleeve 91 is out of engagement with the sleeve 87, only theshaft that is en gaged by the bevel-gear on the shaft 83 will be turnedwhen the shaft 83 is operated,and only one end of the lower shaft willbe raised or lowered. The lower shaft is mounted at each end inablock,95,snpported upon the frame 65, and adapted to be movedtransversely thereon. One of these bearing-blocks is provided with meansby which it may be laterally adjusted on the frame 65. This, as hereshown, consists of a threaded stud or rod, 97, projecting from one endof the bearing-block 95, and passing through a wornrgear which has athreaded opening in its center that engages the rod 97.. A shaft, 101,supported in suitable bearings and provided at its upper end,which isabove the floor-line of the mill, with a hand-wheel, 103, has at itslower end a worm which engages the wheel 99. By turning this shaft thebearing-block 95 and the end of the shaft supported by it may belaterally adjusted on the frame 65.

It is sometimes desirable to adjust the upper guide by a power-drivendevice instead of adjusting it by hand. For this purpose the shaft 33 ispreferably provided within the main standard with a frietion-wheel,105.A shaft, 107, is also mounted in this frame parallel to the shaft 33,and is provided with arms 109, in which are mounted the friction-wheels111 and 113. A handle, 115, is provided on the outer end of the shaft107. By turning the shaft 107 upon its axis either one of the wheels 111or 113 may be thrown into contact with the wheel 105, or both of themmay be held out of contact with it. A belt, 117, passes from the shaftof the lower wheel over both of the wheels 111 and 113,and drives themin opposite directions. An idler, 119, is preferably arranged to engagethis belt. \Vith this arrangement when one of the wheels 111 or 113 isthrown into contact with the wheel 105, the upper guide will be moved inone direction, and when the other wheel is thrown into engagement withthis wheel105,the upper guide will be moved in the other direction. Thetightener keeps the belt taut,even though the shaft of the lower wheelmay be raised or lowered a considerable distance. The shaft 101 movesvertically with the frame supporting the box of the lower shaft.

It will be seen that the front and rear of the standard are exactlysimilar, and that both wheels and both saw-guides are arranged centrallythereon. The blocks 53 may be turned upside down, so as to bring theopen side of the guide in the other direction.

The driving-pulley and the shaft 101 for ad justing one of the boxes ofthe lower wheel may be applied on either side of the lower wheel, aspreferred. The handwlieel 39 may be applied to either end of its shaft,and the shaft 83 may be reversed end for end and its operating-lever andclutch applied at the other side of the standards. In this way all ofthe adjusting and operating devices can be applied to the other side ofthe machine and the mill changed from a right-hand to a left-handmachine. The machine is so constructed that the adjusting and operatingdevices may be applied when the mill is set up either in front or backof the saw at the option of the saw yer, and may be changed in a fewmoments from one side to the other at will at any time. This enables thesawyer to stand in front or back of the saw at his pleasure,and it alsopermits the same construction of the machine to be used either as aright-hand or a left-hand mill.

The manufacturer can construct the machines all alike without regard tothe way in which they are to be used, so that only one kind need becarried in stock, and when they are set up the guides may be forced ineither direction and the adjusting and operating devices applied toeither side of the standard and the machine used as a right-hand or alefthand mill, and may at any time, without reeonstruction,be changedfrom one to the other.

I claim as my invention- 1. The combination, in a band-mill, of thecast-metal main standard provided at its top with the independentstandards 3, projecting vertically therefrom and formed integrallytherewith, the verticallymovable boxes mounted on said standards, theupper shaft mounted in said boxes, and the upper wheel arranged uponsaid shaft between said standards 3, substantiall y as described.

2. The combination, in a band-mill,with the standard, of the upper shaftmounted in vertieally-inovable boxes on said standard, the upper wheelsecured upon said shaft between said boxes,and the upper guide-frame,25, pro j ecting from said standard upon opposite sides of said wheel,and the saw-guide secured to said frame at its outer end, substantiallyas described.

3. The combination, in a band-mill,with the standard, of the upper shaftmounted in vertically-movable boxes on said standard, the up per wheelarranged upon said shaft between said boxes, the U shaped guide frame25, mounted in vertical ways upon said standard and extending uponopposite sides of said wheel, and the saw-guide secured upon said frame,substantially as described.

4. The combination, in a band-mill, of the hollow standard, the uppershaft mounted in vertically-movable boxes thereon, the wheel mountedupon said shaft between said boxes, the U shaped guide-frame 25, mountedin vertical ways upon said standard, the sheaves 29 and 31, arrangedwithin said standard near the upper and lower ends of said way, theshaft 33, arranged in said standard, provided with the spools 35, andthe cables 37, secured to said guide-frame, passing over said sheavesand around said spools, snbstantiall y as described, and for the purposeset forth.

5. The combination, in a band-mill,with the hollow standards providedwith the vertical ways 27, the U-shaped guide-frame mounted in saidways, the sheaves 29 and 31, arranged in said standard near the upperand lower ends of said ways, the shaft 33, mounted in said standard andprovided with the spools 35 and 41, the cables 37, secured to saidguide-frame,

passing over said sheaves and around said spools 35, and the cable 43,wound upon said spool 41 and provided with the counterbalance-weight 45,all substantially as described.

6. The combination, in a band-mill, with the standard, of an arm securedthereto and projecting toward the saw, and provided at its outer endwith an inclined groove, a block mounted in said groove and adapted tobe adjusted therein, and be thereby moved toward and from the standard,and provided in its outer face with a transverse groove, and a sawguide,53, mounted in said transverse groove and adapted to be adj ustedtherein across the face of said block, substantially as described.

7. The combination, in a band-mill,with the main standard, of the uppershaft mounted in vertically-adjusted boxes thereon, the upper wheelarranged upon said shaft between said boxes, the U shaped guide-frame25, adj ustably mounted upon said standardand projecting therefrom uponopposite sides of said wheel, and provided at its outer end with aninclined face having a groove therein, a block mounted in said grooveand adapted to be adjusted therein, and a saw-guide adjustably mountedupon said block, substantially as described.

8. The combination, in a band-mill,with the hollow standard providedwith the independent oppositely-projecting portions3 3, thevertically-movable boxes mounted in bearings upon said independentportions of the standard, the pivoted levers 13, arranged within saidstandard and connected with said sliding boxes and projecting throughslots in the walls of the standard, the shaft 19, provided with theshort arm 17, connected with said levers 13, and also provided with thearm 21, having the weight-receiving box 23 suspended thereon,substantially as described.

9. The combination, in a band-mill, of the lower shaft, bearing-blockssupporting its opposite ends, the lower wheel secured upon said lowershaft between said boxes, suitable frames supporting said boxes, one ofsaid frames being provided with a movable portion through which the sawmay be carried in applying it to or removing it from said lower wheel,substantially as described.

10. The combination, in a band-mill, of the lower shaft, boxessupporting the ends thereof, the lower wheel mounted upon said shaftbetween said boxes, suitable supports for said boxes, one of saidsupports being provided with a movable portion formed in separatesections, which, when moved, forms an opening in said support throughwhich the saw may be carried in applying it or removing it from I saidlower wheel.

the movable blocks 61 in said legs 59, substantially as described, andfor the purpose set forth. 7

12. The combination, in a band-mill, of the lower shaft, boxessupporting the ends thereof, the lower wheel mounted and secured uponsaid shaft between said boxes, means for simultaneously raising orlowering both of said boxes, and means for independently raising orlowering one of said boxes, and means for horizontally adjusting one ofsaid boxes.

13. The combination, in a band-mill, of the shaft mounted upon thevertically-movable boxes, the revolving nuts engaging threaded rodssupporting said boxes, the gear-wheels 75, secured upon said nuts, theshafts 79, provided with pinions engaging said gear-wheels, and providedalso with bevel-gears 81, the shaft 83, having the pinion 85, engagingthe bevelgear on' one of said shafts 79, the sleeve 87, having a pinion,89, engaging the bevelgear 81 on the other ofsaid shafts 79, and thesleeve 91, splined upon the shaft 83 and adapted to engage the sleeve 87or to be disengaged therefrom, whereby both the said shafts 79 may besimultaneously operated to raise or lower both of said boxes, or one ofsaid shafts may be operated independently of the other, substantially asdescribed.

'14. The combination, in a band-mill, with the lower shaft and wheel, ofthe verticallymovable frames 65 and means for adjusting the same, theboxes 95, mounted upon said frame 65 and adapted to be laterallyadjusted thereon, the threaded rod 97, secured to one of said boxes, thethreaded worm-wheel 99, engaging said rod, and the shaft 101, foroperating said worm-wheel, said rod 97, wormwheel, and shaft beingmounted upon and moving with said frame, substantially as described.

15. The combination, in a band-mill, with the standard having its frontand rear sides counterparts of each other, of the upper wheel centrallymounted upon said standard, the lower wheel mounted beneath said upperwheel and the upper andlower guides mounted centrally upon said standardbetween said upper and lower wheels, substantially as described.

16. The combination, in a bandmill, of the standard having its front andrear sides counterparts of each other, the adjusting and operatingdevices constructed to be mounted on either side of said standard, theupper wheel mounted centrally upon said standard, the lower wheelarranged beneath said upper wheel, and the upper and lower saw-guidesarranged centrally upon said standard between said upper and lowerwheels, substantially as described.

17. The combination, in a band-mill, of the standard having its frontand rear sides coun- In testimony whereof I have hereunto set roterparts of each other, the upper wheel cenmy hand this 27th day ofFebruary, 1888.

trally mounted upon said standard, the lower wheel arranged beneath saidupper wheel, the upper and lower guide-supports arranged cen- WVILLIAMPARISH.

trally upon said standard between said upper In presence of and lowerwheels, and the reversible guides A. M. GAsKELL,

mounted on said supports, substantially as de- A. 0. PAUL. scribed.

